Touch terminal, a near-field communication method and system of the touch terminal

ABSTRACT

The disclosure provides a touch terminal, a near-field communication method and system of the touch terminal. The method includes: a second touch terminal receiving a wireless communication request of establishment of the near-field sent by first touch terminal through the near-field electric field; the second touch terminal sending a interference source peripherals closing signal to a main control chip, and informing the main control chip to close interference source peripherals; the first touch terminal and the second terminal establishing a wireless connection by touching near-field electric field, and exchange data. The disclosure enables to make the communication environment purified and guarantee the quality of communication.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.14/150,747 filed on Jan. 8, 2014, which claims the benefit of ChinesePatent Application No. 201310177369.5 filed on May 14, 2013, thecontents of which are hereby incorporated by reference.

TECHNICAL FIELD

The disclosure relates to the technical field of communications, andparticularly relates to a touch terminal, a near-field communicationmethod and system of the touch terminal.

BACKGROUND

At present, the widespread short-range wireless communication technologyare Bluetooth, WLAN (Wi-Fi) and infrared data transmission (IrDA), aswell as some of potential the short-range wireless technology standard,including ZigBee, ultra-wideband (Ultra Wideband, UWB), near fieldCommunications (NFC), WiMedia, GPS (Global Positioning System), digitalEnhanced cordless Telecommunications (DECT), the wireless 1394 standardand the private wireless system they have their own characteristics, orbasing on the special requirements of the transmission speed, distance,power consumption, or focusing on the scalability features, or meetingcertain specific requirements of a single application, or creating acompetitive differentiation techniques, etc. but none of them can meetall demand.

Wherein, NFC is a high-frequency short-range wireless communicationstechnology, which allows electronic devices to transfer and exchangedata non-contact point to point within a range of between about tencentimeters. The technology is evolved from the contactless radiofrequency identification (RFID), and can backward compatible with RFID,first successfully developed by Sony and Philips individually, and itmainly provide for mobile phones and other handheld devices to themachine-to-machine (M2M) communications. Because the near-fieldcommunication has a natural safety, therefore, NFC is considered to havegreat application prospects in the field of mobile payment. Meanwhile,because NFC has superior security than other wireless communicationtechnologies, NFC is compared to a “security dialogue” between machinesby alliance between schools and enterprises of Chinese internet ofThings. NFC offers a simple, touch-based solution that allows consumersto exchange information with a simple and intuitive way to accesscontent and services.

The existing antenna of NFC products mainly are made on one side of thecell, or attached to the inside of the shell, generally by making into acoil through a metal wiring on a printed circuit board (PCB) or aflexible circuit board and then are attached the PCB or FPC, whichcontain the coil, to the shell or the battery. The main disadvantagesare as following: often removing battery and shell phase to phase, sothat makes wiring of the NFC antenna easy to worn or produces thealignment issue, eventually leading to the antenna signal deterioration,and impact the use of NFC product features. In addition, NFC antennaproducts are generally located inside the shell of electronic products,if choosing to make shell by metallic materials, it will affect thespread of NFC signals For capacitive touch terminal, a better way of acommunication is directly using its touch screen driver, line sensorline as near-field communications sending, the receiving channel.Through the above-multiplexed designs, designing without additionalantenna for transmitting and receiving near field communication, therewill not bring the above problems and production costs. However, in thisway, because the signal which can be detected near field communicationis weak, and is susceptible to interference from some peripherals incommunications environment, they referred to as interference sourceperipherals, such as touch terminal of Liquid Crystal display (LCD),thus leading to can no guarantee of communication quality, and theinterference becomes more apparent when the screen on the screen.

SUMMARY

The disclosure provides a near field communication method of the touchterminal in order to solve the technical problem of interferencegenerated by interference source peripherals when having near fieldcommunication between the touch terminal in the communicationsenvironment.

The disclosure provides the following technical solutions:

A near field communication method of the touch terminal, which is usedfor near field communication between a first touch terminal and a secondtouch terminal, the method comprising:

the second touch terminal receiving a wireless communication request ofestablishment of the near-field sent by first touch terminal through thenear-field electric field;

the second touch terminal sending a interference source peripheralsclosing signal to a main control chip, and informing the main controlchip to close interference source peripherals;

the first touch terminal and the second terminal establishing a wirelessconnection by touching near-field electric field, and exchange data.

Preferably, before the second touch terminal receiving a wirelesscommunication request of establishment of the near-field sent by firsttouch terminal through the near-field electric field, the method furthercomprising:

the first touch terminal and the second touch terminal obtaining theuser operation of opening near field communication function, and opennear field communication function;

the first touch terminal detecting whether the second touch terminal islocated in the communication range of the first touch terminal, iflocated, the first touch terminal send the wireless communicationrequest of establishment of the near-field to the second touch terminalthrough the near-field electric field;

the second touch terminal detecting whether the first touch terminal islocated in the communication range of the second touch terminal, iflocated, the second touch terminal receive a wireless communicationrequest of establishment of the near-field sent by first touch terminalthrough the near-field electric field.

Preferably, the user operation of opening near field communicationfunction including a user operation for selecting in the relevant menuof data to be transmitted and a user operation for opening near fieldcommunication function of the touch terminal in the touch terminalsystem settings;

the first touch terminal entering the proximity detection mode in thesending mode, for detecting whether the second touch terminal is locatedin the communication range of the first touch terminal;

the second touch terminal entering the proximity detection mode in thereceiving mode, for detecting whether the first touch terminal islocated in the communication range of the second touch terminal;

Preferably, the proximity detection duration of the first touch terminalis not less than sum of the touch detection duration of the second touchterminal and the two proximity detection duration;

when the touch detection and the proximity detection cannot be performedsimultaneously, the touch detection and the proximity detection can beperformed alternately after entering the proximity detection mode.

Preferably, the first touch terminal detecting whether the second touchterminal is located in the communication range of the first touchterminal comprises:

The first touch terminal detecting the second touch terminal locating inthe communication range of the first touch terminal N timescontinuously, and judging the second touch terminal is located in thecommunication range of the first touch terminal, wherein N is a presetnumber, N≧1; the first touch terminal can not detect the first touchterminal locating in the communication range of the second touchterminal in a preset period of time, and judging the detecting fails,the first touch terminal quit the proximity detection mode and return tothe normal touch detection mode; wherein the second touch terminaldetecting whether the first touch terminal is located in thecommunication range of the second touch terminal comprises:

the second touch terminal detecting the first touch terminal locating inthe communication range of the first touch terminal N timescontinuously, and judging the first touch terminal is located in thecommunication range of the second touch terminal, wherein N is a presetnumber, N≧1.

Preferably, after the second touch terminal sending an interferencesource peripherals closing signal to the main control chip, andinforming the main control chip to close interference sourceperipherals, the method further comprising:

the main control chip judging whether the communication frequencybetween the second touch terminal and the first touch terminal can avoidthe interfering frequency of the interference source peripherals, if thejudgment is YES, the first touch terminal and the second terminalestablish a wireless connection by touching near-field electric field,and exchange data; if the judgment is NO, the main control chip closethe interference source peripherals, then, the first touch terminal andthe second terminal establish a wireless connection by touchingnear-field electric field, and exchange data.

Preferably, the first touch terminal detecting whether the second touchterminal is located in the communication range of the first touchterminal comprising:

the first touch terminal transmitting a particular undisturbed beaconand detect whether there is a undisturbed beacon reply with a particularrule, so that detect whether the second touch terminal is located in thecommunication range of the first touch terminal; wherein the secondtouch terminal detects whether the first touch terminal is located inthe communication range of the second touch terminal comprising:

the second touch terminal transmitting a particular undisturbed beaconand detect whether there is a undisturbed beacon reply with a particularrule, so that detect whether the first touch terminal is located in thecommunication range of the second touch terminal;

The disclosure also provides a near field communication system of thetouch terminal, the system comprises:

a first touch terminal, which sends a wireless communication request ofestablishment of the near-field through a sending electrode;

a second touch terminal, which receives a wireless communication requestof establishment of the near-field through a sending electrode sent bythe first touch terminal through a receiving electrode, and sends ainterference source peripherals closing signal to a main control chip,and inform the main control chip to close interference sourceperipherals;

the first touch terminal and the second terminal establish a wirelessconnection by touching near-field electric field, and exchange data.

The disclosure also provides a touch terminal, the touch terminalcomprises:

a near field communication unit, which is established a wirelessconnection with the other touch terminal by touching near-field electricfield for exchanging data; the near field communication unit include asending electrode and a receiving electrode, the sending electrode senda wireless communication request of establishment of the near-field tothe other touch terminal, the receiving electrode receive a wirelesscommunication request of establishment of the near-field sent by theother touch terminal;

a control unit, which receives a wireless communication request ofestablishment of the near-field sent by the other touch terminal, andsend a interference source peripherals closing signal to a main controlchip, and inform the main control chip to close interference sourceperipherals.

Preferably, the sending electrode is a touchscreen driving electrode ofthe touch terminal, wherein the receiving electrode is a touchscreensensing electrode of the touch terminal.

In the embodiment of the disclosure, the advantages as following: thetouch terminal receiving a wireless communication request ofestablishment of the near-field sent by the other touch terminal throughthe near-field electric field, and informing the main control chip toclose interference source peripherals, and then establishing a wirelessconnection to exchange data, so that the interference upon near fieldcommunication, by interference sources peripherals in the communicationenvironment, can be avoided, and to make the communication environmentpurified and guarantee the quality of communication.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a flowchart of the embodiment 1 of a near fieldcommunication method of the touch terminal according to the disclosure;

FIG. 2 shows a structure diagram of the embodiment 2 of a near fieldcommunication system of the touch terminal according to the disclosure;

FIG. 3 shows a structure schematic diagram of the embodiment 3 of atouch terminal according to the disclosure;

FIG. 4 shows a workflow chart of the embodiment 4 of the first touchterminal as being data sending terminal according to the disclosure;

FIG. 5 shows a workflow chart of the embodiment 5 of the second touchterminal as being data receiving terminal according to the disclosure;

FIG. 6 shows a workflow chart of the embodiment 4 and embodiment 5 ofrealizing near field communication between the touch terminals accordingto the disclosure;

FIG. 7 shows a sequence chart of the embodiment 4 and embodiment 5 ofmacroscopic detection between the touch terminal according to thedisclosure is performed between the detected proximity touch and theterminal according to Example 4 Example 5 provides a timing diagram ofthe embodiment of the macro-detection of the present disclosure;

FIG. 8 shows a sequence chart of the embodiment 4 and embodiment 5 ofmicroscopic detection between the touch terminals according to thedisclosure.

DETAILED DESCRIPTION OF THE EMBODIMENT

To make the objects, technical solutions and advantages of thedisclosure will be clearer, the following drawings and embodiments ofthe disclosure will be described in detail. It should be understood thatthe specific embodiments described hereinafter are used to illustratethe disclosure but to limit the disclosure.

Embodiment 1

The embodiment 1 of the disclosure provides a near field communicationmethod of the touch terminal.

Referring to FIG. 1, which shows a flowchart of the embodiment 1 of anear field communication method of the touch terminal according to thedisclosure the method is used for near field communication between afirst touch terminal and a second touch terminal. Both of the firsttouch terminal and the second touch terminal can be used as either thesending terminal or the receiving terminal, the touch terminal using thenear field communication method has the function of sending date andreceiving date at the same time. As the full duplex communication mode,the device can receive and send date simultaneously; As the half duplexcommunication mode, the device can not receive and send datesimultaneously, which should be switched between the receiving mode andsending mode.

For ease of description, the first touch terminal is defined as the datasending terminal, and the second touch terminal is defined as the datereceiving terminal in disclosure. The method included steps as below:

Step A: The second touch terminal receives a wireless communicationrequest of establishment of the near-field sent by first touch terminalthrough the near-field electric field.

Step B: The second touch terminal sends an interference sourceperipherals closing signal to a main control chip, and informs the maincontrol chip to close interference source peripherals.

Step C: The first touch terminal and the second terminal establish awireless connection by touching near-field electric field, and exchangedata.

Above-mentioned method will be stated in detail as below:

Before the first touch terminal send a wireless communication request ofestablishment of the near-field to the second touch terminal, the usercan manually operate to open the near field communication function.Therefore, before step A, below steps can be executed.

The first touch terminal and the second touch terminal obtain the useroperation of opening near field communication function, and open nearfield communication function;

The first touch terminal detect whether the second touch terminal islocated in the communication range of the first touch terminal, iflocated, the first touch terminal send the wireless communicationrequest of establishment of the near-field to the second touch terminalthrough the near-field electric field;

The second touch terminal detect whether the first touch terminal islocated in the communication range of the second touch terminal, if yes,step A is to be executed.

Wherein, the user operation of opening near field communication functioninclude a user operation for selecting in the relevant menu of data tobe transmitted (the data sending terminal) and a user operation foropening near field communication function of the touch terminal in thetouch terminal system settings (the data receiving terminal). In thespecific application, the user of the data sending terminal can open thenear field communication function by below methods, for instance, usersclick the sharing key of some date, and choose near field communicationsharing date (method of screen to screen), to share date to otherterminal, meanwhile, the terminal's near field function opens, andsearch other terminals as for electrically connect. After the user ofthe data receiving terminal open the near field communication functionin the touch terminal system settings, the terminal will keep searchingwhether other terminals get close to (whether there are any otherterminals are located at the range of communication).

The first touch terminal and the second touch terminal can enter theproximity detection mode respectively, which is under the sending modeand the receiving mode, to detect whether the touch terminal is locatedat the communication range of the other.

For the signal of near field communication is week, we could define thecommunication range within 10 millimeter, and the communication sendingand receiving access between two touch terminals can copy touch screen'sdrive line and sense line, namely, the sending electrode of sending date(require) and the receiving date (require) are touch screen's driveelectrode and sense electrode respectively. Through proximity detection,before two touch terminals are close to each other at the period, whichmeans before two touch terminals do not at the range of communicatingeach other, the interference sources peripherals will be open. At thetime, users can directly operate touch screen without effecting user'sexperience, to deduce the negative effect of experience when interfered.Supplemental instruction is that: the above-mentioned proximitydetecting mode under sending mode and receiving mode can be switched byuser, for instance, when user sends date to another device, he will useproximity detecting mode, in the related menu of sending date, bychoosing sending mode, and the proximity detection mode is alwaysexisting under receiving mode because the mode is open in the systemsettings. The proximity detection mode of data sending terminal issuperior to the proximity detection mode of data receiving terminal.Namely, when the user initiates communication, the mode can be switchedto proximity detecting mode under the sending mode.

In the specific application, the detecting method, by checking whetheranother touch terminal is located at the range of communication, ispreferred to being used. the touch terminal transmit a particularundisturbed beacon and detect whether t there is a undisturbed beaconreply with a particular rule, so that detect whether the other touchterminal is located at the range of communication. The method isadopting communicative shake-hand confirmation to detect the existenceof another communication device.

Interference sources peripherals include but not limited to screen (suchas LCD). Some modes, which can interfere near field communication andclose it for a while, belong to interference sources peripherals.Interference sources peripherals can close in order to guarantee thecommunication quality, such as screen, touch-control detecting functionmode, even GPS mode, WiFi mode and GSM/GPRS mode in which thetouch-control detecting function mode date can open again when the datetransfer and communication finish.

In the embodiment, when the touch terminal receive a wirelesscommunication request of establishment of the near-field sent by theother touch terminal, the touch terminal would inform main control chipto close interference sources peripherals, specially screen, then setwireless connection and exchange date. The interference upon near fieldcommunication, by interference sources peripherals in the communicationenvironment, can be avoided. The communication environment purified andquality of communication enhanced.

As an optimization of the embodiment, the judge whether the interferencecan be avoided or not, can be used to confirm whether interferencesources peripherals need be close or not. The interference sourcesperipheral only need to be close when the communication frequency cannot avoid the interference frequency. The optimization avoidsunnecessary close of interference sources peripherals and optimizes userexperience. The method can be used as configurable mode, to open andclose the function according to actual application requirement. Afterthe second touch terminal send interference sources peripherals signalto main control chip, to inform main control chip to close interferencesources peripherals:

the main control chip judge whether the communication frequency betweenthe second touch terminal and the first touch terminal can avoid theinterference frequency of interference sources peripherals or not. Ifthe judge result is yes, step C would be executed directly. If theresult is no, main control chip close the interference sourcesperipherals, and then executed step C.

Embodiment 2

The embodiment 2 of the disclosure provides a near field communicationsystem of the touch terminal.

Referring to FIG. 2, which shows a structure diagram of the embodiment 2of a near field communication system of the touch terminal according tothe disclosure, the method is used for near field communication betweenthe first touch terminal and the second touch terminal. Both of thefirst touch terminal and the second touch terminal can be used as eitherthe sending terminal or the receiving terminal, the touch terminal usingthe near field communication method has the function of sending date andreceiving date at the same time. As the full duplex communication mode,the device can receive and send date simultaneously; As the half duplexcommunication mode, the device can not receive and send datesimultaneously, which should be switched between the receiving mode andsending mode.

For ease of description, the first touch terminal is defined as the datesender, and the second touch terminal is defined as the date receiver.The system adopts the near field communication method which includes thefirst touch terminal and the second touch terminal, provided byembodiment 1, to communicate. The first touch terminal sends a wirelesscommunication request of establishment of the near-field to the secondtouch terminal, and the second touch terminal receives a wirelesscommunication request of establishment of the near-field sent by firsttouch terminal through the near-field electric field and sends ainterference source peripherals closing signal to a main control chip,and informs the main control chip to close interference sourceperipherals. The first touch terminal and the second terminal establisha wireless connection by touching near-field electric field, andexchange data.

Wherein, the sending and receiving channel of communication between twotouch terminals can copy and use drive line, sense line each other,which are the sending date (request) electrode and receiving date(request) electrode. Namely, the sending date (request) electrode andreceiving date (request) electrode are drive electrode and senseelectrode respectively.

In the embodiment, when the touch terminal receive a wirelesscommunication request of establishment of the near-field sent by theother touch terminal, the touch terminal would inform main control chipto close interference sources peripherals, specially screen, then setwireless connection and exchange date. The interference upon near fieldcommunication, by interference sources peripherals in the communicationenvironment, can be avoided. The communication environment purified andquality of communication enhanced.

Embodiment 3

The embodiment 3 of the disclosure provides a touch terminal.

Referring to FIG. 3, which shows a structure diagram of the embodiment 2of a near field communication system of the touch terminal according tothe disclosure, the method is used for near field communication betweenthe first touch terminal and the second touch terminal. Both of thefirst touch terminal and the second touch terminal can be used as eitherthe sending terminal or the receiving terminal, the touch terminal usingthe near field communication method has the function of sending date andreceiving date at the same time. As the full duplex communication mode,the device can receive and send date simultaneously; As the half duplexcommunication mode, the device can not receive and send datesimultaneously, which should be switched between the receiving mode andsending mode.

The touch terminal adopts the near field communication method whichincludes near field unit 100 and the control unit 200, provided byembodiment 1, to communicate. The near field unit 100 and another touchterminal build wireless connection and exchange date. Near fieldcommunication unit 100 includes sending electrode 101 and receivingelectrode 102. The sending electrode 101 sends a wireless communicationrequest of establishment of the near-field to another touch terminal,and receiving electrode 102 receives a wireless communication request ofestablishment of the near-field sent by another touch terminal throughthe near-field electric field and sends a interference sourceperipherals closing signal to a main control chip 300, and informs themain control chip 300 to close interference source peripherals.

Wherein, the sending and receiving channel of communication between twotouch terminals can copy and use drive line, sense line each other,which are the sending date (request) electrode 101 and receiving date(request) electrode 102. Namely, the sending date (request) electrode101 and receiving date (request) electrode 102 are drive electrode andsense electrode respectively.

In the embodiment, when the touch terminal receive a wirelesscommunication request of establishment of the near-field sent by theother touch terminal, the touch terminal would inform main control chipto close interference sources peripherals, specially screen, then setwireless connection and exchange date. The interference upon near fieldcommunication, by interference sources peripherals in the communicationenvironment, can be avoided. The communication environment purified andquality of communication enhanced.

Embodiment 4

The embodiment 4 of the disclosure provides a touch terminal as a datesender, which is called a first touch terminal hereafter, as datereceiver as well. The embodiment mainly describes the flowchart of thetouch terminal as date receiver. The component of the touch terminal hasbeen described in detail in embodiment 3, which will not be describedany more here.

Referring to FIG. 4, which shows a workflow chart of the embodiment 4 ofthe first touch terminal as being data sending terminal according to thedisclosure, as below in detail:

Specifically, users' operating open near field communication function,for instance, users make choice in the related menu of to be send date,to open the near field communication function of touch terminal. Thedetail of application has been described in embodiment 1, which will notbe described any more here.

Step S102: Enter the proximity detection mode in the sending mode.

The second touch terminal is tested, to be confirmed whether at thescope of the first touch terminal's communication.

Step S103: Detect N times continuously, if yes, execute step S104, ifnot, execute step S107.

When the first touch terminal test N times continuously that the secondtouch terminal is located at the communication scope of the first touchterminal, the test succeeds. Judge the second touch terminal is locatedat the communication scope of the first touch terminal, execute stepS104, in which N is a preset number, N≧1, the specific value of numberis set according practical situation.

Step S104: Send the communication of request.

When the first touch terminal tests the second touch terminal is locatedat the communication scope of the first touch terminal, the first touchterminal sends the request of building wireless near field communicationto the second touch terminal, through near field electric field.

Step S105: Close interference source peripherals.

The first touch terminal sends the close signal of interference sourcesperipherals through control unit, informing main control chip to closeinterference sources peripherals. The interference sources peripheralsmainly are LCD, but not limited to it as above content mentions. Themain control can close the interference sources peripherals directly,and can also judge whether interference can be avoided, to confirmwhether closure of interference sources peripherals is needed or not.The interference sources peripherals should be closed only when thecommunication frequency can not avoid the interference frequency.

Step S106: Communicate.

The first touch terminal and the second touch terminal build wirelessconnection through the near field electric field, and exchange date.

In the embodiment, as prior application method, the first touch terminalcan send pilot connection information, after connects the second touchterminal successfully, to confirm the real existence of the second touchterminal in case of any mistake test. If the pilot frequency fails, tryagain. If fails after Q1 times trail, failure is confirmed, then informmain chip to handle accordingly. When pilot frequency succeeds, sendingdate starts. After date is sent successfully, inform main chip to handleaccordingly. Failure may happen at the sending process, for instance,one device moves beyond of the communication scope. The date sendingwill try again after failure. If the date sending fails after trial Q2times, failure will be judged, in which Q1 and Q2 are preset number,Q1≧1, Q2≧1, and the specific value of number can be set according topractical situation. After the date sending is finished and thecommunication ends, the interference sources peripherals will openagain.

Step S107: Estimate the receiver (namely as a second touch terminal ofdate sender) be not tested in X minutes. If yes, execute step S108, or,go back to step S103.

Timeout is set in the embodiment, then the first touch terminal can nottest the second touch terminal at the scope of communication in Xminutes, the test fails, in which X is a preset time period, and thespecific value of number can be set according to practical situation.The set of timeout can deduce the power consumption of touch terminal,and allow more sources to be used at touch control test.

Step S108: Return the touch detection mode.

Test fails, the first touch terminal quit the proximity detection mode,and return the normal touch detection mode.

Embodiment 5

The embodiment 5 of the disclosure provides a touch terminal as a datereceiver, which is called a second touch terminal hereafter, as datesender as well. The embodiment mainly describes the flowchart of thetouch terminal as date receiver. The component of the touch terminal hasbeen described in detail in embodiment 3, which will not be describedany more here.

Referring to FIG. 5, which shows a workflow chart of the embodiment 5 ofthe second touch terminal as being data receiving terminal according tothe disclosure, as below in detail:

Step S201: Open near field communication function.

Specifically, users' operating open near field communication function,for instance, users make choice in the related menu of to be send date,to open the near field communication function of touch terminal. Thedetail of application has been described in embodiment 1, which will notbe described any more here.

Step S202: Enter the proximity detection mode in the receiving mode.

The first touch terminal is tested, to be confirmed whether at the scopeof the second touch terminal's communication. At the same time, user canswitch to date sending mode at any moment.

Step S203: Detect N times continuously, if yes, execute step S204, ifnot, execute step S203.

When the second touch terminal test N times continuously that the firsttouch terminal is located at the communication scope of the first touchterminal, the test succeeds. Judge the first touch terminal is locatedat the communication scope of the second touch terminal, execute stepS204, in which N is a preset number, N≧1, the specific value of numberis set according practical situation.

Step S204: Receive the communication request.

When the second touch terminal tests the first touch terminal is locatedat the communication scope of the second touch terminal, the secondtouch terminal receives the request of building wireless near fieldcommunication from the first touch terminal, through near field electricfield.

Step S205: Close interference sources peripherals

The second touch terminal sends the close signal of interference sourcesperipherals through control unit, informing main control chip to closeinterference sources peripherals. The interference sources peripheralsmainly are LCD, but not limited to it as above content mentions. Themain control can close the interference sources peripherals directly,and can also judge whether interference can be avoided, to confirmwhether closure of interference sources peripherals is needed or not.The interference sources peripherals should be closed only when thecommunication frequency can not avoid the interference frequency.

Step S206: Communicate.

The first touch terminal and the second touch terminal build wirelessconnection through the near field electric field, and exchange date.

In the embodiment, as prior application method, the touch terminal cansend pilot connection information, after connects the first touchterminal successfully, to confirm the real existence of the second touchterminal in case of any mistake test. If the pilot frequency fails, tryagain. If fails after Q1 times trail, failure is confirmed, then informmain chip to handle accordingly. When pilot frequency succeeds, sendingdate starts. After date is sent successfully, inform main chip to handleaccordingly. Failure may happen at the sending process, for instance,one device moves beyond of the communication scope. The date sendingwill try again after failure. If the date sending fails after trial Q2times, failure will be judged, in which Q1 and Q2 are preset number,Q1≧1, Q2≧1, and the specific value of number can be set according topractical situation. After the date sending is finished and thecommunication ends, the interference sources peripherals will openagain.

The following introduce a workflow chart of the embodiment 4 andembodiment 5 of realizing near field communication between the touchterminal according to the disclosure, referring FIG. 6, describe asfollowing:

The first touch terminal (the data sender) opens near fieldcommunication function through menu selection; the second touch terminal(the data receiver) opens near field communication function in systemsettings. After that, the two terminals enter the proximity detectionmode, as to detect whether there are other communication equipments peerto peer within communication range. After the two terminals near eachother, each other can be detected, then the first touch terminal sends acommunication request to the second touch terminal, a second touchterminal receives a communication request sent by the first touchterminal. For example, when the screen of the two touch terminal withnear-field communication function is face to face, the distance is lessthan 5 millimeters, when the touch terminal detects the presence of theother touch terminal around, the party sends the request, the otherparty receives the request. After that, each informs the main controlchip to close interference source peripherals, and enter into thecommunication stage, the two terminals establish a connection, completedata transmission, the data which can be transferred include but notlimit to the URL, business cards etc. When needing to transfer largefiles, as the preferred option, users can also carry out Bluetoothpairing after establishing a connection, and establish a Bluetoothconnection, and transfer large by Bluetooth, which is faster and havelonger communicate distances. A number of small files such as number,URLs, etc. can be transmitted directly through the near-fieldcommunication. Of course, the first touch terminal and the second touch,which can be used as the data sender and the date receiver, both havethe function of data sending and data receiving, the above descriptionis only to illustrate the workflow of the near field communication, anddoes not mean that the first touch terminal is only used as the datasender, or the second touch terminal is only used as a data receiver.

In addition, there will exist the following problems if either themultiplex driving line or the sensor cable channel is used as acommunication channel: when using the pattern of a single-chip NFC chipplus a touch chip, they can communicate and touch simultaneously,because the two functions is completed by two independent chip; when thesending channels and the receiving channels are multiplexed the drivingline terminal, the line sensor of the touch screen, because of themultiplex driving line and the sensor wire channels, the touch detectionand communication can not proceed simultaneously, the user experience isnot very good at the moment. Therefore, in the multiplex mode, in orderto improve the user experience, the disclosure is designed as followingto reduce the impact of user experience:

In order to obtain faster speed, the proximity detection duration of thefirst touch terminal is not less than sum of the touch detectionduration of the second touch terminal and the two proximity detectionduration, wherein the first touch terminal serves as the data sender andthe second touch terminal serves as the data receiver. And when thetouch detection and proximity detection can not be performedsimultaneously, using time division manner, and after entering into theproximity detection mode, the touch detection and proximity detectionproceed phase to phase. The benefits of above design are: when the touchdetection and communication cannot proceed simultaneously, the responsespeed of proximity detection is faster, and improve the user experience.

Referring to FIG. 7, which shows a sequence chart of the embodiment 4and embodiment 5 of macroscopic detection between the touch terminalaccording to the disclosure. The first touch terminal being as the datasender (hereinafter the sender) proceed the touch detection in the firstperiod, and detects the touch position, and proceed the proximitydetection in the second period, and detects the presence of the datareceiver to communicate with. The duration of proximity detection of thesender is long, which is designed to detect the second touch terminalbeing as the data receiver (hereinafter the receiver) quickly, and soon. Therefore, the refresh rate of touch detection will decrease, butbecause the user is known to the detection of the receiver this time,the touch performance decreased slightly, which is acceptable for users.Detection of the receiver has the similar process, except that theduration of proximity detection is short. Because of opening near fieldcommunication in the system settings, after opening the proximitydetection will be proceed all along, so the impact on the performance ofthe touch is ongoing until closing near field communication in thesystem settings, so here a shorter duration of proximity detection isdesigned in order to guarantee a certain refresh rate of touchdetection, and improve the user experience. The proximity detectionduration of the sender is more than sum of the touch detection durationof the receiver and the two proximity detection duration, which candetect the presence of the receiver one time, the receiver can beguaranteed to detect the presence of a sender in a period.

Referring to FIG. 8, which shows a sequence chart of the embodiment 4and embodiment 5 of microscopic detection between the touch terminalaccording to the disclosure. The touch terminal transmits a particularundisturbed beacon as following, and detects whether there is aundisturbed beacon reply with a particular rule, for detecting whetherthere is the other touch terminal is located in the communication rangeof the touch terminal. For example, the sender and the receiver mayagree that F1 as being the sender exists a beacon, F2 as being thereceiver exists a beacon. As the touch terminal as being the sender,when transmitting M times, the sender exists a beacon F1, and whentransmitting P times, the receiver exists a beacon F2, and the receiverdetects the receiver of the date receiver postback exists a beacon F2,and wherein M and P are the default number, which can be provided ondemand, M≧1, P≧1; M of the embodiment is 3, which can make the receiverconfirm the presence of the sender reliably, P is 1, but not to limitthereto;

When the touch terminal is the data receiver, the touch terminal detectsthe presence of the beacon F1 of the sender and the presence of thebeacon F2 of the receiver, and when detect he presence of the beacon F1of the sender and the presence of the beacon F2 of the receiver, postback the existence of the beacon F2 of the receiver.

The process is similar to the process of communication handshake, whichis used to detect the presence of another communication equipment, andprovide information to close the interference source peripherals. Ofcourse, the beacon is not limited to a specific rule to use only twobeacons F1 and F2, the above-mentioned description is only illustrative,in specific applications may be used, for example, more F1, F2 and F3 tosend a response with a certain rule, as for confirming the close ofanother device; there even can use more beacons, wherein F1, F2 and F3,which are selected from F1, F2, F3, . . . , Fm, are a undisturbedbeacon.

The above described embodiments, for convenience of description, areadopted the process of using half-duplex communication to illustrate,and to distinguish the sender and receiver, but the principles of abovedescribed embodiments are equally applicable to the full-duplexcommunication.

The above description is only the preferred examples of the presentdocument, which is not used to limit the present document. The presentdocument can have various modifications and changes for the skilled inthe art. All the modifications, equivalent substitutions, andimprovements, etc. made within the spirit and principle of the presentdocument shall fall into the protection scope of the present document.

INDUSTRIAL APPLICABILITY

The above embodiment has the following advantages: polling scriptpackets can be combined flexibly and can be extended conveniently; thepolling sub-system can log in multiple apparatuses simultaneously toperform polling, which improves the polling efficiency; and the pollingsub-system can reduce manual interventions, perform pollingautomatically and generate the polling report automatically, which hascomparatively strong usability and can enhance serviceability of thecommunication apparatus.

What is claimed is:
 1. A near field communication method of a touchterminal, which is used for near field communication between a firsttouch terminal and a second touch terminal, the method comprising: thesecond touch terminal receiving a request of establishment of near-fieldwireless communication sent by the first touch terminal through anear-field electric field; the second touch terminal sending ainterference source peripherals closing signal to a main control chip,and informing the main control chip to close interference sourceperipherals; the first touch terminal and the second touch terminalestablishing a wireless connection through the near-field electricfield, and exchange data.
 2. The method according to claim 1, whereinbefore the second touch terminal receiving the request of establishmentof the near-field wireless communication sent by the first touchterminal through the near-field electric field, the method furthercomprising: the first touch terminal and the second touch terminalobtaining a user operation of opening near field communication functionto open near field communication function; the first touch terminaldetecting whether the second touch terminal is located in thecommunication range of the first touch terminal, if located, the firsttouch terminal send the request of establishment of the near-fieldwireless communication to the second touch terminal through thenear-field electric field; and/or the second touch terminal detectingwhether the first touch terminal is located in the communication rangeof the second touch terminal, if located, the second touch terminalreceive a request of establishment of near-field wireless communicationsent by the first touch terminal through the near-field electric field.3. The method according to claim 2, wherein the user operation ofopening near field communication function comprising a user operationfor selecting relevant menu of data to be transmitted or a useroperation for opening near field communication function of the touchterminal in touch terminal system settings; the first touch terminalentering the proximity detection mode in the sending mode, for detectingwhether the second touch terminal is located in the communication rangeof the first touch terminal; and/or the second touch terminal enteringthe proximity detection mode in the receiving mode, for detectingwhether the first touch terminal is located in the communication rangeof the second touch terminal.
 4. The method according to claim 3,wherein a proximity detection duration of the first touch terminal isnot less than sum of a touch detection duration and two proximitydetection durations of the second touch terminal.
 5. The methodaccording to claim 3, wherein when a touch detection and a proximitydetection of the first touch terminal or the second touch terminalcannot be performed simultaneously, the touch detection and theproximity detection can be performed alternately after entering theproximity detection mode.
 6. The method according to claim 3, whereinthe first touch terminal detecting whether the second touch terminal islocated in the communication range of the first touch terminalcomprises: the first touch terminal detecting the second touch terminallocating in the communication range of the first touch terminal N timescontinuously, and determining the second touch terminal is located inthe communication range of the first touch terminal, wherein N is apreset number, and N≧1; the first touch terminal cannot detect thesecond touch terminal locating in the communication range of the firsttouch terminal in a preset period of time, and determining the detectingfails, the first touch terminal quit the proximity detection mode andreturn to the normal touch detection mode.
 7. The method according toclaim 3, wherein the second touch terminal detecting whether the firsttouch terminal is located in the communication range of the second touchterminal comprises: the second touch terminal detecting the first touchterminal locating in the communication range of the first touch terminalN times continuously, and determining the first touch terminal islocated in the communication range of the second touch terminal, whereinN is a preset number, and N≧1.
 8. The method according to claim 1,further comprising: the main control chip judging whether acommunication frequency between the second touch terminal and the firsttouch terminal can avoid the interfering frequency of the interferencesource peripherals, if the judgment is YES, the first touch terminal andthe second touch terminal establish a wireless connection through thenear-field electric field, and exchange data; if the judgment is NO, themain control chip close the interference source peripherals, then, thefirst touch terminal and the second touch terminal establish a wirelessconnection through the near-field electric field, and exchange data. 9.The method according to claim 2, wherein the first touch terminaldetecting whether the second touch terminal is located in thecommunication range of the first touch terminal comprising: the firsttouch terminal transmitting a specific undisturbed beacon and detectingwhether there is a undisturbed beacon reply with a specific rule, sothat detect whether the second touch terminal is located in thecommunication range of the first touch terminal.
 10. The methodaccording to claim 2, wherein the second touch terminal detectingwhether the first touch terminal is located in the communication rangeof the second touch terminal comprises: the second touch terminaltransmitting a specific undisturbed beacon and detecting whether thereis a undisturbed beacon reply with a specific rule, so that detectwhether the first touch terminal is located in the communication rangeof the second touch terminal.
 11. A near field communication system,comprising: a first touch terminal configured to send a request ofestablishment of near-field wireless communication through a sendingelectrode; a second touch terminal configured to receive the request ofestablishment of the near-field wireless communication through areceiving electrode, and send a interference source peripherals closingsignal to a main control chip to inform the main control chip to closeinterference source peripherals; wherein the first touch terminal andthe second terminal establishing a wireless connection through anear-field electric field, and exchange data.
 12. A touch terminal,comprising: a near field communication unit configured to establish awireless connection with another touch terminal through a near-fieldelectric field for exchanging data, wherein the near field communicationunit comprises a sending electrode and a receiving electrode, thesending electrode sending a request of establishment of a near-fieldwireless communication to the other touch terminal, the receivingelectrode receiving a request of establishment of a near-field wirelesscommunication sent by the other touch terminal; a control unitconfigured to receive the request of establishment of the near-fieldwireless communication sent by the other touch terminal, and send ainterference source peripherals closing signal to a main control chip toinform the main control chip to close interference source peripherals.13. The touch terminal according to claim 12, wherein the sendingelectrode is a touchscreen driving electrode of the touch terminal,wherein the receiving electrode is a touchscreen sensing electrode ofthe touch terminal.
 14. The touch terminal according to claim 12,wherein the control unit is further configured to detect whether theother touch terminal is located in the communication range of the touchterminal, if located, the touch terminal send the request ofestablishment of the near-field wireless communication to the othertouch terminal through the near-field electric field.
 15. The touchterminal according to claim 14, wherein the control unit is furtherconfigured to detect whether the other touch terminal is located in thecommunication range of the touch terminal comprises: detecting the othertouch terminal locating in the communication range of the touch terminalN times continuously, and determining the other touch terminal islocated in the communication range of the touch terminal, wherein N is apreset number, and N≧1; the touch terminal cannot detect the other touchterminal locating in the communication range of the touch terminal in apreset period of time, and determining the detecting fails, the touchterminal quit the proximity detection mode and return to the normaltouch detection mode.
 16. The touch terminal according to claim 14,wherein the control unit is further configured to detect whether theother touch terminal is located in the communication range of the touchterminal comprises: the touch terminal transmitting a specificundisturbed beacon and detecting whether there is a undisturbed beaconreply with a specific rule, so that detect whether the other touchterminal is located in the communication range of the touch terminal.17. The touch terminal according to claim 12, wherein the touch terminalenters a proximity detection mode in a sending mode, for detectingwhether the other touch terminal is located in the communication rangeof the touch terminal.
 18. The touch terminal according to claim 17,wherein a proximity detection duration of the touch terminal is not lessthan sum of a touch detection duration and two proximity detectiondurations of the other touch terminal.
 19. The touch terminal accordingto claim 12, wherein when a touch detection and a proximity detection ofthe touch terminal cannot be performed simultaneously, the touchdetection and the proximity detection can be performed alternately afterentering a proximity detection mode.
 20. The touch terminal according toclaim 12, wherein the main control chip judges whether a communicationfrequency between the touch terminal and the other touch terminal canavoid the interfering frequency of the interference source peripherals,if the judgment is YES, the touch terminal and the other touch terminalestablish a wireless connection through the near-field electric field,and exchange data; if the judgment is NO, the main control chip closethe interference source peripherals, then, the touch terminal and theother touch terminal establish a wireless connection through thenear-field electric field, and exchange data.